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2026-05-29 - 18:53
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 20 highest latencies:
System rack6slot0.osadl.org (updated Fri May 29, 2026 13:02:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
5160992651,260cyclictest0-21swapper/2011:41:0713
5160992651,260cyclictest0-21swapper/2011:41:0713
5160992401,236cyclictest0-21swapper/2012:06:4613
5160992401,236cyclictest0-21swapper/2012:06:4513
5160992391,232cyclictest0-21swapper/2010:10:2513
5160992391,232cyclictest0-21swapper/2010:10:2413
5160992381,231cyclictest0-21swapper/2009:51:5613
5160992381,231cyclictest0-21swapper/2009:51:5613
5160992381,231cyclictest0-21swapper/2009:51:5513
5160992371,232cyclictest0-21swapper/2009:20:0313
5160992371,232cyclictest0-21swapper/2009:20:0213
5160992361,232cyclictest0-21swapper/2010:25:1913
5160992361,232cyclictest0-21swapper/2010:25:1913
5160992361,232cyclictest0-21swapper/2010:25:1913
5160992341,229cyclictest37346-21qemu-system-x8611:04:3213
5160992341,229cyclictest37346-21qemu-system-x8611:04:3113
5160992340,232cyclictest0-21swapper/2011:06:5513
5160992340,232cyclictest0-21swapper/2011:06:5513
5160992340,232cyclictest0-21swapper/2011:06:5513
5160992330,231cyclictest0-21swapper/2010:00:4413
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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